South Branch 93
South Branch 93 is an earth dam located in Otoe County, Nebraska, built in 1983. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About South Branch 93
The primary purpose of South Branch 93 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Tr-s Fk Little Nemaha River near Douglas.
The dam stands 38 feet tall and stretches 830 feet across, creates a reservoir covering 15 acres, has a maximum storage capacity of 534 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1983, the structure is 43 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 06/15/2021.
At 38 feet, this dam is taller than 85% of dams nationwide.
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Location
| State | Nebraska |
| County | Otoe |
| Nearest City | Douglas |
| River/Stream | Tr-s Fk Little Nemaha River |
| Coordinates | 40.57890, -96.43950 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 38 ft |
| Dam Height | 34 ft |
| Dam Length | 830 ft |
| Year Completed | 1983 (43 years old) |
Storage & Hydraulics
| NID Storage | 534 acre-ft |
| Max Storage | 534 acre-ft |
| Normal Storage | 73 acre-ft |
| Surface Area | 15 acres |
| Drainage Area | 1 sq mi |
| Max Discharge | 515 cfs |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Nemaha Natural Resources District |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 06/15/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | NE02166 |
| Federal ID | NE02166 |
| More Info | State Dam Safety Program |